baber/WOPTO huggingface dataset:
Patent GB-1056885-A (GB)
Title: Method and apparatus for manufacturing polyamide material or articles
IPC: B29C48/40
Filed: 1964-08-04
Abstract: <PICT:1056885/C3/1> Polyamide articles are produced by a continuous process comprising (a) mixing a lactam, an activator and an anionic catalyst; (b) feeding the mixture into a reaction tube where it is (c) melted, (d) heated to a temperature above the melting point of the forming polyamide (e) subjected to shearing forces, (f) freed from volatile constituents under reduced pressure, (g) shaped, and (h) cooled.  Lactams specified are 6-12 ring-carbon atom lactams, e.g. caprolactams, capryllactam, enantholactam, caprinlactam, laurylactam, e -ethyl-e -caprolactam, o -ethylenanthalactam, methylene biscaprolactam, and mixtures thereof.  Activators specified are N-acetyl caprolactam, isocyanates, hexamethylene biscarbamide caprolactam, hexamethylene biscarbamide laurinlactam, phenylene-1,4 - biscarbamidocaprolactam, ketenes, acid chlorides, carbodiimides, acid anhydrides, lactams having sulphonyl, nitroso, thiocarbonyl, phosphenyl, or thiophosphenyl groups on the nitrogen atom, carbamides, thiocarbamides, urethanes, carbamidines, carbonamides and thiocarbonamides.  0.01-15% may be used. Catalysts specified are: alkaline or alkaline earth metals, e.g. Na, K, Ca, their oxides, hydroxides, carbonates, amides or hydrides, organo metallic compounds of the first and third main groups of the Periodic Table and sodium caprolactamate, sodium laurallactamate, and potassium capryllactamate.  0.5-5% may be used.  Other materials which may be added are: pigments and other colouring agents, stabilizers and flow and de-moulding agents.  Suitable pigments and colouring agents, which should be anhydrous and acid free, include carbon black, CdSe, CdS, Ba(MnO4)2 Co(A102)2, Be(A102)2, ultramarine, beryllium-aluminium silicate, TiO2, and iron, magnesium, aluminium, beryllium, silicon and chromium oxides, silicate glass fibres, phthalocyanine and mixtures thereof. 0.01-5% may be used. Stabilizers specified are tri (nonylphenyl) phosphite, triphenylphosphite, KBr, KI, and 1,4(bis 4-aminophenyl) phenylene.  0.01-2% may be used.  Flow and demoulding agents specified are calcium, zinc and sodium stearates and polyethylene diamineoxalate. 0.05-0.5% may be used.  In a particular embodiment the polymer forming mixture enters reaction tube 1 at zone 7 and is conveyed along the tube by worm screws 2 and 3 driven by variable-speed motor 5.  The mixture is compressed and melted at 300-400 DEG  C. in zones 9-12, zones 9 and 11 consisting of eccentrically mounted discs which knead the mixture.  It is subjected to shearing forces by passing it through a gap 13, 0.5-13 mm. wide between the worm and the surrounding sheath. Volatile constituents, mainly lactam monomer and oligomers, are removed at 250-300 DEG C./1-20 mm.  Hg in zones 14 and 16.  The product is either extruded from zone 17 as filament, tubing, rod or band and quenched in water, or injection moulded.
Patent GB-600900-A (GB)
Title: Improvements in or relating to grass cutting shears
IPC: A01G3/06
Filed: 1945-11-20
Abstract: 600,900. Shears. JARDINE, W. H. Nov. 20, 1945, No. 30892/47. Divided out of 600,883. [Class 30] In grass-cutting shears of the kind comprising stamped, sheet-metal blades 1, 2 connected by a pivot 7, the blades have flat parts behind the pivot, the blade 2 being fixed to a bracket 18 welded to a tubular stale 19 having a tubular handle 20 welded to its upper end, and hand levers 22 pivoted at 23 to brackets 21 fixed to the ends of the tube project through. slots into the interior of the stale 19 and are connected by a rod 24 to the blade 1, a helical spring 25 returning the blades to the open position after cutting. The spring 25 bears at one end against a flange 26 on the rod 24 and at the other against a shoulder on a tube 27 protecting the exposed part of the spring. The end of the rod 24 is bent to engage a hole in the blade 1. The device is described also in Specification 600,883.
Patent GB-1024094-A (GB)
Title: Improvements relating to curable elastomeric compositions
IPC: C08J3/20
Filed: 1964-08-04
Abstract: A process for the production of masterbatch material from a composition comprising a chain-saturated hydrocarbon copolymer having side chain ethylenic unsaturation and carbon black and/or a mineral filler, comprises subjecting the composition at a temperature of at least 93 DEG  C. in the absence of heat treatment promoters to a shear treatment in which the degree and time of shear are sufficient to produce a decrease of at least 5% in the minimum value of the Mooney scorch curve at 121 DEG  C. of a composition consisting of the copolymer 52% ethylene, 44% propylene, and 4% 1,4-hexadiene, all percentages being by weight, having a Mooney viscosity of 70, and 70-80 parts by weight of high abrasion furnace black per 100 parts by weight of copolymer. A list of suitable copolymers is given.  In the examples, ethylene/propylene/1,4-hexadiene copolymers are compounded with various carbon blacks, kaolin and magnesium silicate. The produced masterbatch material is vulcanized in the conventional manner using the usual additives including in some cases further carbon black or mineral fillers.
Patent GB-1193384-A (GB)
Title: Impeller Pump and Electric Motor Assembly
IPC: F04D29/06
Filed: 1968-06-28
Abstract: 1,193,384. Cooling electric motors driving pumps. BORG-WARNER CORP. 28 June, 1968 [2 Aug., 1967], No. 31009/68. Heading H2A. [Also in Divisions F1 and F2] A pump assembly for high temperature and pressure fluids, comprising main and auxiliary pumps 11, 13, Figs. 2 and 4, driven by an electric motor 12, has a thermal barrier plate 39 arranged between the main pump and motor to maintain the temperature of the motor within tolerable limits. A cooling fluid, e.g. the fluid being pumped, is delivered from an inlet 131, through a spiral-like passage or passages in the plate 39 and through shaft clearance 76 into the space below the main pump impeller 77 from where it is discharged into the main flow by supplementary impeller vanes 137. Cooling is also provided by delivering cooling fluid, e.g. water, through passages 104 in a member 17 between the main pump and motor, the adjacent passages 104 being joined alternately at their radially outer and inner ends so that the water flows in a zig-zag path towards and away from the shaft during its passage around the member 17 from an inlet 107 to an adjacent outlet (108), Fig. 8 (not shown). The upper surface of the member 17 has a layer of laminated stainless steel thereon (not shown). Further cooling is provided by a lubrication system for the bearings and for a shaft seal assembly 49. In this system oil is delivered by the auxiliary pump 13 through conduit 168 into an inlet region 201 of a series of longitudinal grooves 179 in the motor stator. The grooves 179 are arranged in a number of groups interconnected alternately at the upper and lower ends of the stator so that the oil passes from the inlet region 201 around the stator to an outlet region along a zig-zag path. Thereafter, the oil passes through passages 103 to the shaft seal assembly 49 where some of the oil flows via a spiral groove 64 or via stationary and rotary seal members 57, 72 to the shaft clearance 76, and the remainder flows through passage 86 into shaft bore 82 and back to the auxiliary pump 13 via tube 85, passage 87, rotor/stator clearance 215 and passage 169. Three terminals 184 are provided. Bearing 91 is lubricated by the returning oil flow. Make-up oil is delivered to the auxiliary pump 13 through a non-return valve 173 and passages 172, 171, 169. The auxiliary pump impeller comprises a ring 151 keyed to a thrust disc 138 of a thrust bearing assembly having floating bearing shoes 141, 142 at either side of the disc 138. The bearing assembly is lubricated by oil delivered through passages 164, 165 and returned through passages 217, 169 and 174, 171, 169. In a further cooling arrangement for the motor, cooling water is circulated through an annular space between the motor casing 16 and an outer shell 223. The annular space contains a spiral tube 225, and cooling water entering the space at 227 flows through the tube and between the coils of the tube to an outlet 226. The motor casing 16 may be made up in sections welded together as at 29 and 31.
Patent GB-409604-A (GB)
Title: Improvements in or relating to double casement windows
IPC: E06B3/26
Filed: 1933-11-08
Abstract: 409,604. Double casement windows. VOIGT, R., 187, F³rstenwall, D³sseldorf, Germany. Nov. 8, 1933, No. 31079. [Class 20 (iii).] The outer sash of a double casement metal window is provided with a second web 23 extended so as to engage a flange 3 on the inner sash and situated at a distance from the web of the inner sash. Firm contact between the outer sash and frame at the flanges 4, 16, is maintained by adjusting set-screws 43 passing through the flange 30 of the inner sash and bearing on the flanged end of the web 23. The hinge-sockets of both sashes are situated in an angle between one flange 18<a>, by which the fixed frame is anchored to the wall, and the web 15 which is suitably cut away for the lugs of the hinges, these lugs being concealed behind the flange 30 of the inner sash. The fastening bolts 40 are concealed behind the flange 3 also, and the protruding ends pass through openings 41 into the frame. Drain holes 25, 35, are provided in the lower horizontal members of the outer sash and frame.
Patent GB-270775-A (GB)
Title: Improvements in gas heating stoves and gas fires
IPC: F24C15/24
Filed: 1925-12-09
Abstract: 270,775. Nichols, F. G. Dec. 9, 1925. No Patent granted (Sealing fee not paid). Radiants for gas fires are made in the form of perforated plates which are arranged more or less horizontally over the burners. Figs. 1 and 2 show a plane irregularly-perforated radiant having solid or perforated supports B, B<1> at the sides. The support may extend above as well as below the plane of the radiant, rendering it reversible. The surface of the radiant may be curved. The radiant may be supported by lugs or feet, one at each corner, for example, or, as shown in Fig. 6, formed at the front and back, or at the sides. Two or more radiants may be superimposed, and may be permanently joined in this relation.
Patent GB-185050-A (GB)
Title: Improvements in valve devices for oil cans
IPC: F16N3/06
Filed: 1921-11-21
Abstract: 185,050. Harding, A. S. Nov. 21, 1921. Lubricating-cans of the type in which the outlet valve is operated by pressure on the flexible bottom. A valve-cage 16 is secured in the spout 12 by a bead 12<a> pressed from the spout into a groove 16<a> in the cage 16. A valve-rod 19 passes through the cage 16 and carries a valve 20 which seats upon the end of the cage 16. The valve 20 has an integral guide 21 and is normally kept closed by a spring 22. A washer 15 of fibre &c. prevents leakage of oil from the can.
Patent GB-390879-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/76
Filed: 1931-11-10
Abstract: 390,879. High-tension switches. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Dyer, L. W. ; 2324, Braddock Avenue, Swissvale, and Rawlins, H. Le G. ; 710, Coal Street, Wilkinsburg, both in Pennsylvania. U.S.A.) Nov. 10, 1931, No. 31132. Convention date, Nov. 26, 1930. [Class 38 (v).] In a circuit-breaker wherein the arc is extinguished by insulating liquid trapped in pockets formed by a number of superimposed insulating discs with insulating spacers between them the pockets constitute an elongated passage through which the arc gases are constrained to flow through the - whole length of the arc to escape through venting means arranged adjacent to the fixed contacts. In the construction shown in Fig. 1, the arc at break is drawn between the contacts 5, 6 in an arc-extinguishing chamber immersed in the oil or water tank 1. The chamber contains a number of superimposed insulating discs 37 separated from one another by insulating washers 36 so as to constitute a cellular structure through which the movable pin contact passes and from the cells of which oil and gases produced by the arc flow into the arc stream and have a deionizing effect. The circuit is broken within the first half-cycle of the break and a very rapid downward movement of the bridging contact member is effected by the double springs 15, 16 which are held in the stressed condition when the switch is closed by the engagement of a spring-pressed ball latch 29 with a slot in the rod 13. When the latch is released by the action of the tripping member 39 or a cam device 31, the springs very rapidly move down the operating rod 8 and the final movement is cushioned by the springs by the engagement of the head 25 with a collar 18. In a modification of the cellular structure, Fig. 2, the openings in the insulating discs progressively increase in size towards the vent 52. The Specification as open to inspection under Sect. 91 describes also an arrangement in which oil is trapped in the chambers of a cellular structure and is forced by the arc pressure from one chamber to another instead of being forced through a common vent. This subject-matter does not appear in the Specification as accepted.
Patent GB-341512-A (GB)
Title: A kidney truss
IPC: A61F5/26
Filed: 1929-10-14
Abstract: 341,512. Surgical trusses. GORDON, A. W., 31, Nicholson Street, Essendon, Victoria, Australia. Oct. 14, 1929, No. 31145. [Class 81 (ii).] A truss for supporting a prolapsed kidney comprises a, kidney-shaped pad 1 secured to a curved spring 3 by a, stud 9 which engages one of a number of holes 8 in the spring and permits adjustment of the pad at any required angle. A circular pad 2 is secured to the other end of the spring by a screw 10, several alternative holes 8 being provided here also if desired. A strap 11 may be secured by the screw 10 at one end and engage the stud 9 by key-hole slots 12. The spring 3 is provided with a cover 4 and with soft padding 7. In use the pad 1 is applied to the front of the body in a position corresponding to that of the prolapsed kidney; the spring passes around the body and the pad 2 engages the back. Specifications 2377/90 and 1212/95, [both in Class 81, Medicine &c.], are referred to.
Patent GB-193476-A (GB)
Title: Improvements in or relating to devices for controlling the starting of clicking presses and other machines
IPC: C14B5/00
Filed: 1921-11-22
Abstract: 193,476. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Nov. 22, 1921. Controlling clutches.-In starting electrically-driven clicking presses or other machine tools, in order to prevent the motor from being started under load, a power transmission clutch is locked in its inoperative position until a controller handle has been moved to start the driving motor. In one construction, a pivoted latch 1 linked to the controller handle 6 prevents the movement of a clutching lever 8 until the handle has been moved to start the motor. In an alternative construction the latch is actuated by an electromagnet. Specification 6165/10, [Class 103 (i), Brakes &c.], is referred to.
Patent GB-1506985-A (GB)
Title: Data system
IPC: G06Q99/00
Filed: 1975-03-03
Abstract: 1506985 Data display systems ONTEL CORP 3 March 1975 [6 March 1974] 31224/76 Divided out of 1503381 Heading H4T The description is similar to that of Specification 1,506,984 the claims relating to the scrolling of the display, i.e. the upper text line is deleted, the remaining text lines are each moved upwards by one line, and a new lower text line is inserted. This is achieved by incrementing, between each frame of the display, the address of the first data character of the first text line transmitted from a data memory 32 to an address register 140 by the number of data characters in a text line, eighty in the described embodiment, the new address in address register 140 then being employed to interrogate data memory 32 to obtain and display the first data character of the first text line of the new display. Scrolling of the display at a desired rate, e.g. one text line per second, takes place under the control of a video timing circuit 132. When the address stored in address register 140 equals or exceeds the last data character address in data memory 32, this is detected by a circuit 154 which causes the address of the first data character of the first text line of data memory 32 to again be stored in address register 140; hence the first text line from data memory 32 is displayed beneath the final text line of the new display. Alternatively, the text lines appearing below the final text line of the new display may be displayed blank by causing a display address memory 158, which acts as a buffer between data memory 32 and address register 140, to store an address signifying the location of coded characters causing a clear display, rather than the address of the first data character of the first text line of data memory 32.
Patent GB-1468943-A (GB)
Title: Glass composition for producing alkali-resistant fibres
IPC: C03C13/00
Filed: 1974-07-15
Abstract: 1468943 Alkali-resistant glass NIPPON ASBESTOS CO Ltd 15 July 1974 [19 July 1973] 31306/74 Heading C1M [Also in Division C3] A glass composition comprises, in weight per cent: SiO 2  35-50; Fe 2 O 3  and/or MnO 5-35; ZrO 2  10-19, the balance, if any, consisting of compatible constituents. The balance may comprise, in weight per cent; 0-7 alkali metal oxide(s) (e.g. Na 2 O or K 2 O); 0-30 alkaline earth metal oxide(s) (e.g. CaO or MgO); 0-5 B 2 O 3 ; 0-5 CaF 2 ; 0-10 TiO 2 ; or 0-15 Al 2 O 3 . The composition, which is alkali resistant, may be formed into fibres (e.g. at 1300-1500‹ C.). The fibres may be used in reinforcing moulded articles comprising calcium silicate, cement or gypsum.
Patent GB-1017718-A (GB)
Title: Polypropylene strapping
IPC: D01D5/08
Filed: 1964-08-04
Abstract: Oriented strapping is made from a blend of polypropylene containing 0.5-80% by weight of high density polythene, or 0.5-15% by weight of a soft addition polymer which contains at least 60% of a hydrocarbon polymer by extruding the blend into a quench bath 4, passing the strip thus formed, via a preheater 10, to a pair of compression rolls 12, 13 (see Figs. 3 and 4, not shown) which extend the strip at least twice, and then stretching the strip by means of take-off rolls 14, 141 to an overall increase in length of at least six times. The stretched and oriented strip then passes through a heat conditioner 15, a wash tank 17, and is finally taken up on spool 18.  Suitable soft addition polymers include polyisobutylene, chain saturated hydrocarbon elastomers, atactic polypropylene, and ethylene vinylacetate copolymers, and preferably have a melt index of from 0.1 to 300 and have 80% of the particles under 20 microns.  The high density polyethylene has a density greater than 0.935 gms./c.c. and a molecular weight within the range 50,000 to 250,000 and is preferably present in the proportion 4-30% by weight.
Patent GB-604028-A (GB)
Title: Improvements in or relating to thermal power plants
IPC: F02C1/06
Filed: 1945-11-21
Abstract: 604,028. Gas turbines. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. Nov. 21, 1945, No. 31353. Convention date, Dec. 12, 1944. [Class 110 (iii)] In a gas-turbine plant comprising an air compressor 1 supplying air to an air turbine 9 through. a preheater 3 and a heater 6 heated by gases from a combustion chamber 8 which is supplied with combustion air from the exhaust of the air turbine 9, the combustion gases from the heater 6 pass through a gas turbine 12 and the preheater 3 before exhausting to atmosphere. The air turbine 9 driving the air compressor 1 and the gas turbine 12 driving the generator 13 may be on independent shafts, as shown, or be connected together through an equalizing gear or mounted on a common' shaft. The air turbine 9 may drive the generator 13 and the gas turbine 12, the compressor 1, or the low-pressure part of the compressor may be driven in common with the generator. The fuel supplied to the combustion chamber may be oil, pulverized coal, natural gas, blast furnace gas or producer gas or the like. Compressed air for use elsewhere may be taken through a pipe 15 from any point between the compressor discharge and the inlet to the combustion chamber.
Patent GB-649576-A (GB)
Title: Improvements in and relating to apparatus for subjecting liquid material to electrical treatment
IPC: C12H1/12
Filed: 1946-10-23
Abstract: <PICT:0649576/III/1> Apparatus for treating liquids with electromagnetic and/or electrostatic fields under ionizing conditions whilst flowing of a film over a tubular conduit 9 comprises feed means 2, a closed p  chamber 5, collecting means 15, vacuum producing means 17 and means 16 for introducing an inert or processing gas into the chamber.  One electrode 27 is inside the conduit whilst the other, 39, of spaced segmental form (see Fig. 2, not shown), surrounds the conduit.  The edges of the segments of the electrode 39 are serrated to induce a corona discharge effect so that the liquid is subjected to emitted metallic ions from the electrode which may be nickel, zinc, silver, thorium, thoriated nickel, borated copper and/or alloys.  The provisional Specification describes also a pair of feeding hoppers which may contain the same or different substances for subsequent mixing in a header which has a stirrer blade therein from whence the substance passes to the feed means.  From the header the material passes through an atomizer and is discharged as a spray into the chamber.  The receiver 15 may be fitted with a regulated magnetizing coil. Applications of the apparatus are the separation of fusel oil from alcohol, improvement of the physiological value of nutrients or the curative value of medicaments, and the dissociation of acids.
Patent GB-972363-A (GB)
Title: Wrapper band for teabag or the like
IPC: B65D85/812
Filed: 1963-08-09
Abstract: 972,363. Fittings for tea-pots and drinking vessels. A. RAMBOLD. Aug 9, 1963 [Aug. 18, 1962], No. 31506/63. Heading A4A. [Also in Division B8] A wrapper band 1 for a tea-bag 2 (see Division B8) may be used, as shown, on a tea-pot, the end 8 of the band serving as a drip catcher. Alternatively, Figs. 14-15 (not shown), the band may be attached to the handle of a cup while the tea-bag is suspended in the cup.
Patent GB-991175-A (GB)
Title: A non-slip sole for footwear
IPC: A43B13/22
Filed: 1961-09-01
Abstract: A moulded shoe sole has at least part of the outer layer constituted by a mixture of natural or synthetic rubber and fine metal fibres. This mixture may constitute the whole of the sole, or only the outer layer, or just the central portion of the outer layer.  Steel fibres may be used and are adhered to the rubber by being covered by brass or zinc or by the rubber containing an organic cobalt salt or a polyamine.
Patent GB-395375-A (GB)
Title: Improvements in or relating to transmission gears for electric locomotives and the like
IPC: B61C9/48
Filed: 1931-11-14
Abstract: 395,375. Electric locomotives. ARMSTRONG, WHIT WORTH, & CO. (ENGINEERS), Ltd., SIR W. G., TRIMMING, G. A. R., and TRUTCH, C. J. H., Thames House, Westminster. Nov. 14, 1931, No. 31606. [Classes 79 (ii) and 79 (iii).] In an electric locomotive, the motor is supported on one side about the railwheel axle and on the other side on the vehicle frame, for example by means of a projection resting on a seat on the vehicle frame, and the drive is transmitted from the motor to the rail wheels by spur gearing comprising two or more change-speed gear ratios. The motor 1 is suspended on the railwheel axle 2 and is supported by one or more noses 1a resting on a seat on the vehicle frame. The motor shaft has pinions 5, 6 adapted to mesh alternatively with spur wheels 3, 4 slidable on the axle 2 under the control of a bridle device 7 operated through a spring &c. In modifications, the gear wheels are constantly in mesh and are controlled by clutches actuated simultaneously or separately.